- Companies
- Plumbers and heating engineers
- Letchworth Garden City
- Ad Plumbing & Heating Services Ltd
Ad Plumbing & Heating Services Ltd
- Company number
- 12692949
- Incorporated
- 23 Jun 20206 years trading
- Registered office
- 101 Eastern Way, Letchworth Garden City, SG6 4PG
- Nature of business
- Plumbing, heat and air-conditioning installation
Ad Plumbing & Heating Services Ltd is a 6-year-old private limited company registered in Letchworth Garden City, company number 12692949, one of 20 plumbing and heating companies in Letchworth Garden City. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Ad Plumbing & Heating Services LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £471 (-3.7%) on the year before, to £12K.
- Net assets rose in 3 of 5 year-on-year comparisons on record.
- Current assets of £9,821 against £1,598 owed within a year: 6.1 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 6 years, 2021 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £12K | £9,821 | £1,598 | 1 | |
| 31 Mar 2025 | £13K | £9,421 | £1,494 | 1 | |
| 31 Mar 2024 | £13K | £13K | £4,731 | 1 | |
| 30 Jun 2023 | £12K | £14K | £8,352 | 1 | |
| 30 Jun 2022 | £5,460 | £4,995 | £6,627 | 1 | |
| 30 Jun 2021 | £321 | £4,569 | £4,248 | 1 |
Where Ad Plumbing & Heating Services Ltd is registered
The registered office is in Letchworth Garden City (SG6), in the North Hertfordshire local authority area, East of England. Show SG6 4PG on a map.
Other trade companies in SG6
- Combined Auto Services LimitedMotor traders
- G.O.A.L Energy Services LtdElectricians
- Bedmond Construction LtdProperty developers
- Barski Property Care LtdBuilders
- PK Construction and Stones LimitedBuilders
- McCormack Maintenance LtdCivil engineering
- Nitdas Cleaning Solution LtdCleaning companies
- Nbtotalproperty LtdLandscapers and gardeners
What happens if Ad Plumbing & Heating Services Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 12692949
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 June 2020 (6 years ago)
- Registered office
- 101 Eastern Way, Letchworth Garden City, SG6 4PG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 22 June 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Letchworth Garden City
Other active plumbing and heating companies registered in Letchworth Garden City.
- All Things Water Ltd2021
- Andrew Stevenson Developments Ltd2014
- Bakker & Wilson Plumbing & Heating Ltd2013
- Blue Whale Plumbing and Heating Ltd2023
- Brooks Plumbing & Heating Services Ltd2022
- Brown's Boilers Ltd2023
- Bywater Plumbing & Heating Limited2010
- Centroheat Limited2011
All plumbing and heating companies in Letchworth Garden City · All trades in Letchworth Garden City · Plumbers and heating engineers across the UK
Frequently asked questions
When are Ad Plumbing & Heating Services Ltd's accounts due?
Ad Plumbing & Heating Services Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Ad Plumbing & Heating Services Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Ad Plumbing & Heating Services Ltd still trading?
Ad Plumbing & Heating Services Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Ad Plumbing & Heating Services Ltd do?
Ad Plumbing & Heating Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Ad Plumbing & Heating Services Ltd?
Ad Plumbing & Heating Services Ltd was incorporated on 23 June 2020, 6 years ago.
What is the penalty if Ad Plumbing & Heating Services Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Ad Plumbing & Heating Services Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.